Name
Title | ||
|---|---|---|
Performance Evaluation of Opportunistic Vertical Handover Considering On–Off Characteristics of VoIP Traffic |
Abstract | ||
|---|---|---|
Vertical handover is one of the key technologies to support seamless connectivity across multiple wireless communication systems and guarantee quality of service (QoS) for the applications therein. This paper proposes an opportunistic vertical handover scheme for a voice over Internet Protocol (VoIP) connection that makes use of the on-off characteristics of voice traffic by aligning the mutual silence period of the two parties engaged in conversation with the service disruption time that occurs during the vertical handover procedure. From the six-state Brady model, we derive a simplified two-state Markov model in which the characteristics of both the talk-spurt period and the mutual silence period are obtained. We then analyze the performance of the proposed scheme with respect to the handover execution time and the packet loss time. The analysis and simulation results show that the proposed scheme significantly decreases the VoIP packet loss time, whereas the total time required for the vertical handover procedure increases but remains within a tolerable time limit. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.1109/TVT.2010.2049510 | IEEE T. Vehicular Technology |
Keywords | Field | DocType |
voip traffic,opportunistic vertical handover,voice over internet protocol (voip),vertical handover,six-state brady model,simplified two-state markov model,wireless communication systems,quality of service,qos guarantee,mobility management (mobile radio),handover execution time,internet telephony,voice-over-internet protocol,packet loss time,quality of service (qos),seamless connectivity,on-off characteristics,telecommunication traffic,markov processes,seamless mobility,voice over internet protocol,protocols,authentication,wireless communication,markov model,wireless networks,packet loss | Wireless network,Vertical handover,Soft handover,Computer science,Computer network,Quality of service,Packet loss,Packet switching,Handover,Voice over IP | Journal |
Volume | Issue | ISSN |
59 | 6 | 0018-9545 |
Citations | PageRank | References |
6 | 0.54 | 10 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Hyun-ho Choi | 1 | 265 | 35.38 |
| Oh-young Song | 2 | 271 | 26.40 |
| Yeon-Kyung Park | 3 | 6 | 0.54 |
| Jung-ryun Lee | 4 | 132 | 24.91 |